摘要:
Figure 1 shows a stop valve (1) provided with an inlet opening (2) and an outlet opening (3) which both open at one side of a sealing (4), that is adjustable for height in dependence on the pressure in an upper chamber (5) at the other side of the sealing (4). The delivery of such a stop valve is enlarged and the diameter of the passage between the inlet opening and the outlet opening is made controllable by applying pressure puls means (9-1, 9-2) connected to the upper chamber (5), which pressure puls means may generate instantaneous pressure variations in the upper chamber (5). The height of the sealing (4) can be adjusted in steps and is therewith controllable by inferencing the time duration of the pressure pulses delivered by the pressure puls means in the upper chamber.
摘要:
A vapour exhaust system has a volumeter 5 and an air pump 7 mechanically coupled therewith, to let the volume of the amount of fluid pumped over correspond with the amount of air pumped out of a fuel tank. A translating and rotating movement provides the signal to maintain the correspondence, in which cases the crankshaft 10 of the volumeter 5, is coupled to the air pump possibly being formed as a gear-wheel pump. At wish coupling can take place via a gear transmission.